Eupatorium perfoliatum
American boneset
A robust, clump-forming perennial to 1.2m with erect stems and pairs of long, narrow, pointed leaves joined at the base. Large terminal clusters of small, off-white flowers are produced from summer to early autumn
Other common names
Indian ague weedMarch sage
see morethorough-growth
thorough-stem
thorough-wax
vegetable antimony
wild sage
feverwort
thoroughwort
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | White | Green | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Eupatorium can be annuals, herbaceous perennials, subshrubs or evergreen shrubs, with small tubular flowers borne in terminal panicles or corymbs
- Name status
Correct
- Plant range
- SE USA
How to grow
Cultivation
Grow in any moist soil in full sun or partial shade
Propagation
Propagate by seed sown in containers in spring or autumn, or by division in spring
Suggested planting locations and garden types
- Prairie planting
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
Pruning
Cut back at the end of the season
Pests
Diseases
Generally disease-free
Get involved
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